An autopsy is expected to be conducted later Thursday.
Grebelskiy was shot while riding with his sister in the back of a livery cab stopped at the intersection of Utica Ave. and Avenue O about 2:30 a.m. Saturday.
The suspect, 19 year old Michael Magnan was charged with attempted murder, assault, criminal possession of a weapon and criminal mischief
Charges are expected to be upgraded to murder
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